Amphiphilic Indoline-Based Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells: Modulating the Dye-TiO2/Electrolyte Interface for Nonaqueous and Aqueous Electrolytes

2021 ◽  
Author(s):  
Ambarish Kumar Singh ◽  
Jayaraj Nithyanandhan
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Aqueous Electrolytes ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

scholarly journals High efficiency dye-sensitized solar cells with VOC–JSC trade off eradication by interfacial engineering of the photoanode|electrolyte interface

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40292-40300
Author(s):  
Anantharaj Gopalraman ◽  
Subbian Karuppuchamy ◽  
Saranyan Vijayaraghavan
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Trade Off ◽  
Interfacial Engineering ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

VOC–JSC trade off is eliminated. Newly created surface states by OA in TiO2 facilitated the charge transfer kinetics.

scholarly journals Pyran-Squaraine as Photosensitizers for Dye-Sensitized Solar Cells: DFT/TDDFT Study of the Electronic Structures and Absorption Properties

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Reda M. El-Shishtawy ◽  
Shaaban A. Elroby ◽  
Abdullah M. Asiri ◽  
Rifaat H. Hilal
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Nbo Analysis ◽  
Basis Set ◽  
Absorption Properties ◽  
Charge Delocalization ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Donor Acceptor ◽  
Sensitized Solar Cells

In an effort to provide, assess, and evaluate a theoretical approach which enables designing efficient donor-acceptor dye systems, the electronic structure and optical properties of pyran-squaraine as donor-acceptor dyes used in dye-sensitized solar cells were investigated. Ground state properties have been computed at the B3LYP/6-31+G**level of theory. The long-range corrected density functionals CAM-B3LYP, PBEPBE, PBE1PBE (PBE0), and TPSSH with 6-311++G**were employed to examine absorption properties of the studied dyes. In an extensive comparison between experimental results and ab initio benchmark calculations, the TPSSH functional with 6-311++G**basis set was found to be the most appropriate in describing the electronic properties for the studied pyran and squaraine dyes. Natural transition orbitals (NTO), frontier molecular orbitals (FMO), LUMO, HOMO, and energy gaps, of these dyes, have been analyzed to show their effect on the process of electron injection and dye regeneration. Interaction between HOMO and LUMO of pyran and squaraine dyes was investigated to understand the recombination process and charge-transfer process involving these dyes. Additionally, we performed natural bond orbital (NBO) analysis to investigate the role of charge delocalization and hyperconjugative interactions in the stability of the molecule.

Fused Fluorenylindolenine-Donor-Based Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells

2018 ◽  
Vol 10 (31) ◽  
pp. 26335-26347 ◽  
Author(s):  
Rajesh Bisht ◽  
Vediappan Sudhakar ◽  
Munavvar Fairoos Mele Kavungathodi ◽  
Neeta Karjule ◽  
Jayaraj Nithyanandhan
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

π-Extended cis-Configured Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells: Panchromatic Response

2019 ◽  
Vol 2 (12) ◽  
pp. 8464-8472 ◽  
Author(s):  
Vellimalai Punitharasu ◽  
Munavvar Fairoos Mele Kavungathodi ◽  
Ambarish Kumar Singh ◽  
Jayaraj Nithyanandhan
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Squaraine Dyes with BODIPY Skeletons for the Application to Dye-Sensitized Solar Cells

2015 ◽  
Vol 88 (7) ◽  
pp. 208-217 ◽  
Author(s):  
Takeshi MAEDA ◽  
Daisuke KAKIO ◽  
Shigeyuki YAGI ◽  
Hiroyuki NAKAZUMI
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals TiO2/Dye/Electrolyte Interface Modification for Dye-Sensitized Solar Cells

2013 ◽  
Vol 29 (09) ◽  
pp. 1851-1864 ◽  
Author(s):  
LI Jing-Zhe ◽  
◽  
KONG Fan-Tai ◽  
WU Guo-Hua ◽  
HUANG Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Interface Modification ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

Strategies for optimizing the performance of carbazole thiophene appended unsymmetrical squaraine dyes for dye-sensitized solar cells

2015 ◽  
Vol 17 (35) ◽  
pp. 23095-23103 ◽  
Author(s):  
Suraj Soman ◽  
M. A. Rahim ◽  
S. Lingamoorthy ◽  
Cherumuttathu H. Suresh ◽  
Suresh Das
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Squaraine Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Unsymmetrical squaraine dyes (CTSQ-1 and CTSQ-2) with carbazole thiophene donor units were synthesized, characterized and used as sensitizers in dye-sensitized solar cells (DSSCs).

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